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ch341a_bitbang.c
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ch341a_bitbang.c
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/*
* avrdude - A Downloader/Uploader for AVR device programmers
*
* avrdude support for CH341
* Copyright (C) 2016 Alexey Sadkov
* Copyright (C) 2017 maxxproff
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Interface to the CH341A programmer.
*
*/
#include "ac_cfg.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/time.h>
#include <unistd.h>
#include "avrdude.h"
#include "libavrdude.h"
#include "ch341a_bitbang.h"
#include "usbdevs.h"
#if defined(HAVE_LIBUSB_1_0)
#ifdef HAVE_LIBUSB_1_0
# define USE_LIBUSB_1_0
# if defined(HAVE_LIBUSB_1_0_LIBUSB_H)
# include <libusb-1.0/libusb.h>
# else
# include <libusb.h>
# endif
#endif
#ifdef USE_LIBUSB_1_0
static libusb_context *ctx = NULL;
static int libusb_to_errno(int result)
{
switch (result) {
case LIBUSB_SUCCESS:
return 0;
case LIBUSB_ERROR_IO:
return EIO;
case LIBUSB_ERROR_INVALID_PARAM:
return EINVAL;
case LIBUSB_ERROR_ACCESS:
return EACCES;
case LIBUSB_ERROR_NO_DEVICE:
return ENXIO;
case LIBUSB_ERROR_NOT_FOUND:
return ENOENT;
case LIBUSB_ERROR_BUSY:
return EBUSY;
#ifdef ETIMEDOUT
case LIBUSB_ERROR_TIMEOUT:
return ETIMEDOUT;
#endif
#ifdef EOVERFLOW
case LIBUSB_ERROR_OVERFLOW:
return EOVERFLOW;
#endif
case LIBUSB_ERROR_PIPE:
return EPIPE;
case LIBUSB_ERROR_INTERRUPTED:
return EINTR;
case LIBUSB_ERROR_NO_MEM:
return ENOMEM;
case LIBUSB_ERROR_NOT_SUPPORTED:
return ENOSYS;
default:
return ERANGE;
}
}
#endif
/*
* Private data for this programmer.
*/
struct pdata
{
libusb_device_handle *usbhandle;
int sckfreq_hz;
};
#define PDATA(pgm) ((struct pdata *)(pgm->cookie))
// ----------------------------------------------------------------------
/* Prototypes */
static void ch341a_bitbang_setup(PROGRAMMER * pgm);
static void ch341a_bitbang_teardown(PROGRAMMER * pgm);
static int ch341a_bitbang_open(PROGRAMMER * pgm, char * port);
static void ch341a_bitbang_close(PROGRAMMER * pgm);
static int ch341a_bitbang_initialize(PROGRAMMER * pgm, AVRPART * p);
static int ch341a_bitbang_spi_cmd(PROGRAMMER * pgm, const unsigned char *cmd, unsigned char *res);
static int ch341a_bitbang_spi(PROGRAMMER * pgm, const unsigned char *in, unsigned char *out, int size);
static int ch341a_bitbang_spi_program_enable(PROGRAMMER * pgm, AVRPART * p);
static int ch341a_bitbang_spi_chip_erase(PROGRAMMER * pgm, AVRPART * p);
//static int ch341a_bitbang_spi_transfer(PROGRAMMER * pgm, const unsigned char *cmd, unsigned char *res);
// dummy functions
static void ch341a_bitbang_disable(PROGRAMMER * pgm);
static void ch341a_bitbang_enable(PROGRAMMER * pgm);
static void ch341a_bitbang_display(PROGRAMMER * pgm, const char * p);
BOOL MegaSpiOutInData(PROGRAMMER * pgm, ULONG OutLen, PVOID DataBuf, PVOID DataBufOut );
//BOOL CH341WriteRead(PROGRAMMER * pgm, ULONG iWriteLength, PVOID iWriteBuffer, ULONG iReadStep, ULONG iReadTimes, PULONG oReadLength, PVOID oReadBuffer);
BOOL MegaSpiEnable( PROGRAMMER * pgm );
//BOOL SpiResetMega( PROGRAMMER * pgm );
BOOL CH341SetStream_bitbang( PROGRAMMER * pgm, ULONG Mode );
//static int CH341USBTransfer_bitbangPart2(PROGRAMMER * pgm, enum libusb_endpoint_direction dir, unsigned char *buff, unsigned int size);
#define mUSBI0_MAX_NUMBER 16
#define mMAX_BUFFER_LENGTH 0x1000
//#include <usb.h>
//int CH341_write_data( PROGRAMMER * pgm, unsigned char *buf, unsigned long size );
//bool CH341_write_read ( PROGRAMMER * pgm, unsigned long write_length, unsigned char * write_buffer, unsigned long read_step, unsigned long read_times, unsigned long *read_length, unsigned char *read_buffer );
bool CH341_write_read_new ( PROGRAMMER * pgm, unsigned long write_length, unsigned char * write_buffer, unsigned long read_step, unsigned long read_times, unsigned long *read_length, unsigned char *read_buffer );
//static int usb_bulk_io(PROGRAMMER * pgm, int ep, char *bytes, int size, int timeout);
//static int usb_bulk_io(libusb_device_handle * dev, int ep, char *bytes, int size, int timeout);
struct sUSBIO_context
{
struct usb_device *dev;
//struct PROGRAMMER * pgm;
int write_timeout;
int read_timeout;
int out_ep;
int in_ep;
int index;
unsigned char USBIO_ver_ic;
unsigned char USBIO_stream_mode;
};
//struct sUSBIO_context sUSBIO[ mUSBI0_MAX_NUMBER ];
//usb_dev_handle *usb_dev[ mUSBI0_MAX_NUMBER ];
/* ch341 requires LSB first, swap the bit order before send and after receive */
/* static unsigned char swap_byte(unsigned char byte) {
byte = ((byte >> 1) & 0x55) | ((byte << 1) & 0xaa);
byte = ((byte >> 2) & 0x33) | ((byte << 2) & 0xcc);
byte = ((byte >> 4) & 0x0f) | ((byte << 4) & 0xf0);
return byte;
} */
static int CH341USBTransfer_bitbangPart(PROGRAMMER * pgm, enum libusb_endpoint_direction dir, unsigned char *buff, unsigned int size) {
int ret, bytestransferred;
if (!PDATA(pgm)->usbhandle)
return 0;
if ((ret = libusb_bulk_transfer(PDATA(pgm)->usbhandle, CH341A_USB_BULK_ENDPOINT | dir, buff, size, &bytestransferred, CH341A_USB_TIMEOUT))) {
avrdude_message(MSG_INFO, "%s: Error: libusb_bulk_transfer for IN_EP failed: %d (%s)\n", progname, ret, libusb_error_name(ret));
return -1;
}
return bytestransferred;
}
static bool CH341USBTransfer_bitbang(PROGRAMMER * pgm, enum libusb_endpoint_direction dir, unsigned char *buff, unsigned int size)
{
int pos = 0, bytestransferred;
while (size) {
bytestransferred = CH341USBTransfer_bitbangPart(pgm, dir, buff + pos, size);
if (bytestransferred <= 0)
return false;
pos += bytestransferred;
size -= bytestransferred;
}
return true;
}
/* The assumed map between UIO command bits, pins on CH341A chip and pins on SPI chip:
* UIO CH341A SPI CH341A SPI name
* 0 D0/15 CS/1 (CS0)
* 1 D1/16 unused (CS1)
* 2 D2/17 unused (CS2)
* 3 D3/18 SCK/6 (DCK)
* 4 D4/19 unused (DOUT2)
* 5 D5/20 SI/5 (DOUT)
* - The UIO stream commands seem to only have 6 bits of output, and D6/D7 are the SPI inputs,
* mapped as follows:
* D6/21 unused (DIN2)
* D7/22 SO/2 (DIN)
*/
bool CH341ChipSelect_bitbang(PROGRAMMER * pgm, unsigned int cs, bool enable) {
unsigned char res[4];
unsigned char cmd[4];
memset(cmd, 0, sizeof(cmd));
memset(res, 0, sizeof(res));
avrdude_message(MSG_DEBUG, "%s: ch341a_bitbang_ChipSelect()\n", progname);
if (cs > 2) {
avrdude_message(MSG_INFO, "%s: Error: invalid CS pin %d, 0~2 are available\n", progname, cs);
return false;
}
cmd[0] = CH341A_CMD_UIO_STREAM;
if (enable)
//cmd[1] = CH341A_CMD_UIO_STM_OUT | ( 0x37 & ~(1<<cs));
cmd[1] = CH341A_CMD_UIO_STM_OUT | 0x00;
//cmd[1] = CH341A_CMD_UIO_STM_OUT |0x02; //TODO: for use CS1, I don't test it
//cmd[1] = CH341A_CMD_UIO_STM_OUT |0x03; //TODO: for use both CS0+CS1, I don't test it
else
//cmd[1] = CH341A_CMD_UIO_STM_OUT | 0x37;
cmd[1] = CH341A_CMD_UIO_STM_OUT | 0x01;
//cmd[2] = CH341A_CMD_UIO_STM_DIR | 0x3F;
//cmd[3] = CH341A_CMD_UIO_STM_END;
cmd[2] = CH341A_CMD_UIO_STM_END;
//return CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, cmd, 4);
return CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, cmd, 3);
}
static int ch341a_bitbang_open(PROGRAMMER * pgm, char * port) {
LNODEID usbpid = lfirst(pgm->usbpid);
int pid, vid, j, r;
int errorCode = USB_ERROR_NOTFOUND;
libusb_device_handle *handle = NULL;
static int didUsbInit = 0;
avrdude_message(MSG_DEBUG, "%s: ch341a_bitbang_open(\"%s\")\n", progname, port);
if(!didUsbInit) {
didUsbInit = 1;
libusb_init(&ctx);
}
if (usbpid) {
pid = *(int *)(ldata(usbpid));
if (lnext(usbpid))
avrdude_message(MSG_INFO, "%s: Warning: using PID 0x%04x, ignoring remaining PIDs in list\n",
progname, pid);
} else {
pid = CH341A_PID;
}
vid = pgm->usbvid? pgm->usbvid: CH341A_VID;
libusb_device **dev_list;
int dev_list_len = libusb_get_device_list(ctx, &dev_list);
for (j=0; j<dev_list_len; ++j) {
libusb_device *dev = dev_list[j];
struct libusb_device_descriptor descriptor;
libusb_get_device_descriptor(dev, &descriptor);
if (descriptor.idVendor == vid && descriptor.idProduct == pid) {
r = libusb_open(dev, &handle);
if (!handle) {
errorCode = USB_ERROR_ACCESS;
avrdude_message(MSG_INFO, "%s: Warning: cannot open USB device: %s\n",
progname, strerror(libusb_to_errno(r)));
continue;
}
}
}
libusb_free_device_list(dev_list,1);
if (handle != NULL) {
errorCode = 0;
PDATA(pgm)->usbhandle = handle;
}
if (errorCode!= 0) {
avrdude_message(MSG_INFO, "%s: error: could not find USB device with vid=0x%x pid=0x%x",
progname, vid, pid);
avrdude_message(MSG_INFO, "\n");
return -1;
}
if ((r = libusb_claim_interface(PDATA(pgm)->usbhandle, 0))) {
fprintf(stderr, "%s: error: libusb_claim_interface failed: %d (%s)\n", progname, r, libusb_error_name(r));
libusb_close(PDATA(pgm)->usbhandle);
libusb_exit(ctx);
}
return 0;
}
static void ch341a_bitbang_close(PROGRAMMER * pgm) {
avrdude_message(MSG_DEBUG, "%s: ch341a_bitbang_close()\n", progname);
CH341ChipSelect_bitbang(pgm, 0,false);
if (PDATA(pgm)->usbhandle!=NULL) {
libusb_release_interface(PDATA(pgm)->usbhandle, 0);
libusb_close(PDATA(pgm)->usbhandle);
}
libusb_exit(ctx);
}
static int ch341a_bitbang_initialize(PROGRAMMER * pgm, AVRPART * p) {
avrdude_message(MSG_DEBUG, "%s: ch341a_bitbang_initialize()\n", progname);
CH341SetStream_bitbang( pgm, 0x81 );
MegaSpiEnable( pgm );
CH341ChipSelect_bitbang(pgm, 0,false);
usleep(20 * 1000);
CH341ChipSelect_bitbang(pgm, 0,true);
return pgm->program_enable(pgm, p);
}
/* static int ch341a_bitbang_spi_transfer(PROGRAMMER * pgm, const unsigned char *cmd, unsigned char *res) {
unsigned char pkt[CH341A_PACKET_LENGTH];
unsigned int i;
//int ret;
//int bytestransferred;
int size=sizeof(cmd);
avrdude_message(MSG_DEBUG, "%s: ch341a_bitbang_spi_transfer(0x%02x, 0x%02x, 0x%02x, 0x%02x)%s",
progname, cmd[0], cmd[1], cmd[2], cmd[3], verbose > 3? "...\n": "\n");
if (size > CH341A_PACKET_LENGTH - 1)
size = CH341A_PACKET_LENGTH - 1;
for (i = 0; i < size; i++) {
pkt[i] = cmd[i];
}
if (CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, pkt, size)<=0 || CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_IN, pkt, size)<=0) {
avrdude_message(MSG_INFO, "%s: failed to transfer data to/from CH341\n", progname);
return -1;
}
for (i = 0; i < size; i++) {
res[i] = pkt[i];
}
return size;
} */
static int ch341a_bitbang_spi_cmd(PROGRAMMER * pgm, const unsigned char *cmd, unsigned char *res) {
return pgm->spi(pgm, cmd, res, 4);
}
static int ch341a_bitbang_spi(PROGRAMMER * pgm, const unsigned char *in, unsigned char *out, int size) {
//unsigned char DataBuf[CH341A_PACKET_LENGTH];
//unsigned int i;
if (!size)
return 0;
if (size > CH341A_PACKET_LENGTH)
size = CH341A_PACKET_LENGTH;
//pkt[0] = CH341A_CMD_SPI_STREAM;
//for (i = 0; i < size; i++)
//DataBuf[i] = swap_byte(in[i]);
//DataBuf[i] = in[i];
//MegaSpiOutInData(pgm, OutLen, DataBuf );
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, pkt, size +1))
//{
// fprintf(stderr, "Error: failed to transfer data to CH341\n");
// return -1;
//}
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_IN, pkt, size))
//{
// fprintf(stderr, "Error: failed to transfer data from CH341\n");
// return -1;
//}
//if (!MegaSpiOutInData(pgm, (ULONG)size, (PVOID)DataBuf))
if (!MegaSpiOutInData(pgm, (ULONG)size, (PVOID)in, out))
{
fprintf(stderr, "Error: failed to transfer data to or from CH341\n");
return -1;
}
//for (i = 0; i < size; i++)
//out[i] = swap_byte(DataBuf[i]);
//out[i] = in[i];
return size;
}
static int ch341a_bitbang_spi_program_enable(PROGRAMMER * pgm, AVRPART * p) {
unsigned char res[4];
unsigned char cmd[4];
memset(cmd, 0, sizeof(cmd));
memset(res, 0, sizeof(res));
cmd[0] = 0;
avrdude_message(MSG_DEBUG, "%s: ch341a_bitbang_program_enable() %s\n",
progname, p->op[AVR_OP_PGM_ENABLE]);
if (p->op[AVR_OP_PGM_ENABLE] == NULL) {
avrdude_message(MSG_INFO, "program enable instruction not defined for part \"%s\"\n", p->desc);
return -1;
}
avr_set_bits(p->op[AVR_OP_PGM_ENABLE], cmd);
avrdude_message(MSG_DEBUG, "program_enable(): sending command. Cmd = %x %x %x %x \n", (int)cmd[0], (int)cmd[1], (int)cmd[2], (int)cmd[3]);
pgm->cmd(pgm, cmd, res);
avrdude_message(MSG_DEBUG, "program_enable(): receiving. Resp = %x %x %x %x \n", (int)res[0], (int)res[1], (int)res[2], (int)res[3]);
// check for sync character
if (res[2] != cmd[1])
return -2;
return 0;
}
static int ch341a_bitbang_spi_chip_erase(struct programmer_t * pgm, AVRPART * p) {
unsigned char cmd[4];
unsigned char res[4];
if (p->op[AVR_OP_CHIP_ERASE] == NULL) {
avrdude_message(MSG_INFO, "chip erase instruction not defined for part \"%s\"\n", p->desc);
return -1;
}
memset(cmd, 0, sizeof(cmd));
avr_set_bits(p->op[AVR_OP_CHIP_ERASE], cmd);
pgm->cmd(pgm, cmd, res);
usleep(p->chip_erase_delay);
pgm->initialize(pgm, p);
return 0;
}
void ch341a_bitbang_initpgm(PROGRAMMER * pgm) {
strcpy(pgm->type, "ch341a_bitbang");
/*
* mandatory functions
*/
pgm->initialize = ch341a_bitbang_initialize;
pgm->display = ch341a_bitbang_display;
pgm->enable = ch341a_bitbang_enable;
pgm->disable = ch341a_bitbang_disable;
pgm->program_enable = ch341a_bitbang_spi_program_enable;
pgm->chip_erase = ch341a_bitbang_spi_chip_erase;
pgm->cmd = ch341a_bitbang_spi_cmd;
pgm->spi = ch341a_bitbang_spi;
pgm->open = ch341a_bitbang_open;
pgm->close = ch341a_bitbang_close;
pgm->read_byte = avr_read_byte_default;
pgm->write_byte = avr_write_byte_default;
/*
* optional functions
*/
//pgm->paged_write = ch341a_bitbang_spi_paged_write;
//pgm->paged_load = ch341a_bitbang_spi_paged_load;
pgm->setup = ch341a_bitbang_setup;
pgm->teardown = ch341a_bitbang_teardown;
}
/* Interface - management */
static void ch341a_bitbang_setup(PROGRAMMER * pgm) {
if ((pgm->cookie = malloc(sizeof(struct pdata))) == 0) {
avrdude_message(MSG_INFO, "%s: ch341a_bitbang_setup(): Out of memory allocating private data\n",
progname);
exit(1);
}
memset(pgm->cookie, 0, sizeof(struct pdata));
}
static void ch341a_bitbang_teardown(PROGRAMMER * pgm) {
free(pgm->cookie);
}
/* Dummy functions */
static void ch341a_bitbang_disable(PROGRAMMER * pgm) {
/* Do nothing. */
return;
}
static void ch341a_bitbang_enable(PROGRAMMER * pgm) {
/* Do nothing. */
return;
}
static void ch341a_bitbang_display(PROGRAMMER * pgm, const char * p) {
return;
}
// ----------------------------------------------------------------------
#else /* HAVE_LIBUSB */
static int ch341a_bitbang_nousb_open (struct programmer_t *pgm, char * name) {
avrdude_message(MSG_INFO, "%s: error: no usb support. please compile again with libusb installed.\n",
progname);
return -1;
}
void ch341a_bitbang_initpgm(PROGRAMMER * pgm) {
strcpy(pgm->type, "ch341a_bitbang");
pgm->open = ch341a_bitbang_nousb_open;
}
#endif /* HAVE_LIBUSB */
const char ch341a_bitbang_desc[] = "Driver for \"ch341a_bitbang\"-type programmers";
#define DELAY_US 4 //TODO: Edit DELAY_US for tune bitbang speed.
BOOL MegaSpiOutInData(
PROGRAMMER * pgm,
ULONG OutLen, // Output data length
PVOID DataBufIn,
PVOID DataBufOut ) // The output data buffer SPI data returned
{
PUCHAR p;
ULONG i, j, k;
//ULONG zz;
ULONG zzz;
//ULONG zzzz;
UCHAR c, tem;
UCHAR mBuffer[ 512 ];
//UCHAR zzzzBuffer[ 4 ];
//if( MegaSpiEnable( pgm ) == FALSE) // ?ʼ»¯CH341µÄSPI
//return FALSE;
//if( SpiResetMega( pgm ) == FALSE )
//return FALSE; // ¸´Î»MEGA8
//Sleep( 200 );
for( zzz = 0; zzz != 512; zzz++ )
{
mBuffer[ zzz ] = 0xff;
}
// 202334066 on? + 6.95us - 5.85us
p = (PUCHAR)DataBufIn;
k = 0;
//zzzz = 0;
//avrdude_message(MSG_DEBUG, "OutLen = %x\n", (int)OutLen);
for( i = 0; i != OutLen; i++ )
{
//if (zzzz > 1)
//zzzz = 0;
tem = *p;
//tem = 0xac;
//if (tem == 0x00)
//tem = 0xff;
// FOR transfer in cycle
//k = 0; // FOR transfer in cycle
//avrdude_message(MSG_DEBUG, "i = %x\n", (int)i);
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: tem = %x\n", (int)tem);
mBuffer[ k++ ] = CH341A_CMD_UIO_STREAM; // Command code
//mBuffer[ k ] = CH341A_CMD_UIO_STREAM; // Command code
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: mBuffer[%x] = %x\n", (int)k-1, (int)mBuffer[k-1]);
for( j = 0; j != 4; j++ )
{
c = tem & 0x80 ? 0x20 : 0; // D5 Data output
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | c; // D3=0, I/O_CLOCK=LOW
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_US | DELAY_US;
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | c | 0x08; // D3=1, I/O_CLOCK=HIGH
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_IN; // input from D7
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_US | DELAY_US;
tem <<= 1;
}
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | c | 0x00; // D3=0, I/O_CLOCK=LOW
// mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | 0x20;
// mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | 0x00;
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_END; // The current command pack ends prematurely
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: k-1 = %x\n", (int)k-1);
k += CH341A_PACKET_LENGTH - 1;
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: k = %x\n", (int)k);
k &= ~ ( CH341A_PACKET_LENGTH - 1 );
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: k-1 = %x\n", (int)k-1);
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k-1))
//if (!CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, 23))
//for( zz = 0; zz != k; zz++ )
//{
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: mBuffer[%x] = %x\n", (int)zz, (int)mBuffer[zz]);
//}
//if (CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k)<=0)
//{
//fprintf(stderr, "Error: failed to transfer data to CH341\n");
//return FALSE;
//}
//k = 0;
mBuffer[ k++ ] = CH341A_CMD_UIO_STREAM; // Command code
for( j = 0; j != 4; j++ )
{
c = tem & 0x80 ? 0x20 : 0; // D5 Data output
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | c; // D3=0, I/O_CLOCK=LOW
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_US | DELAY_US;
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | c | 0x08; // D3=1, I/O_CLOCK=HIGH
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_IN; // input from D7
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_US | DELAY_US;
tem <<= 1;
}
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | c | 0x00; // D3=0, I/O_CLOCK=LOW
//mBuffer[ k++ ] = CH341A_CMD_UIO_STM_US | DELAY_US;
//mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | 0x20;
//mBuffer[ k++ ] = CH341A_CMD_UIO_STM_US | DELAY_US;
//mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | 0x00;
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_END; // The current command pack ends prematurely
//mBuffer[ k ] = CH341A_CMD_UIO_STM_END;
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: k = %x\n", (int)k);
k += CH341A_PACKET_LENGTH - 1;
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: k = %x\n", (int)k);
k &= ~ ( CH341A_PACKET_LENGTH - 1 );
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: k = %x\n", (int)k);
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: mBuffer[%x] = %x\n", (int)k-1, (int)mBuffer[k-1]);
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k-1))
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k))
//for( zz = 0; zz != k; zz++ )
//{
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: mBuffer[%x] = %x\n", (int)zz, (int)mBuffer[zz]);
//}
//if (!CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, 23))
//if (!CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k/2))
//if (CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k)<=0)
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k))
//{
//fprintf(stderr, "Error: failed to transfer data to CH341\n");
//return FALSE;
//}
//if (zzzz == 1)
//{
//zzzzBuffer[ 0 ] = 0xFE;
//zzzzBuffer[ 1 ] = 0xDE;
//zzzzBuffer[ 2 ] = 0xFE;
//zzzzBuffer[ 3 ] = 0xDE;
//if (CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, zzzzBuffer, 4)<=0)
//return FALSE;
//if (CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k)<=0)
//return FALSE;
//}
//zzzz++;
//MegaSpiEnable( pgm );
//CH341ChipSelect_bitbang(pgm, 0,false);
//usleep(20);
//CH341ChipSelect_bitbang(pgm, 0,true);
p++;
}
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: k = %x\n", (int)k);
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: sizeof(mBuffer) = %x\n", (int)sizeof(mBuffer));
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: mBuffer[0] = %x\n", (int)mBuffer[0]);
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: mBuffer[%x] = %x\n", (int)k-1, (int)mBuffer[k-1]);
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: mBuffer[%x] = %x\n", (int)246, (int)mBuffer[246]);
//mBuffer[ k++ ] = CH341A_CMD_UIO_STM_END;
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: mBuffer[%x] = %x\n", (int)k-1, (int)mBuffer[k-1]);
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: sizeof(mBuffer) = %x\n", (int)sizeof(mBuffer));
//for( zz = 0; zz != k; zz++ )
//{
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: mBuffer[%x] = %x \n", (int)zz, (int)mBuffer[zz]);
//}
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k))
//if (CH341USBTransfer_bitbangPart2(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k)<=0)
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, 246))
//{
//fprintf(stderr, "Error: failed to transfer data to CH341\n");
//return FALSE;
//}
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: before CH341_write_read OutLen = %d \n", (int)OutLen);
//i = CH341_write_read( pgm, k, mBuffer, 4, OutLen*2, &j, mBuffer );
//i = CH341_write_read( pgm, k, mBuffer, 4, OutLen, &j, mBuffer );
//i = CH341_write_read( pgm, k, mBuffer, 8, OutLen, &j, mBuffer );
i = CH341_write_read_new( pgm, k, mBuffer, 4, OutLen*2, &j, mBuffer );
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: after CH341_write_read OutLen = %d \n", (int)OutLen);
//for( zz = 0; zz != 128; zz++ )
//{
//avrdude_message(MSG_DEBUG, "mBuffer[%x] = %x ", (int)zz, (int)mBuffer[zz]);
//}
if( i == FALSE )
return( FALSE );
if( j != OutLen * 8 )
//if( j != OutLen * 4 )
return( FALSE );
k = 0;
for ( i = 0; i != OutLen; i++ )
{
c = 0;
for ( j = 0; j < 8; j ++ )
//for ( j = 0; j < 4; j ++ )
{
c <<= 1;
if ( mBuffer[ k++ ] & 0x80 ) // input 8 bit
c ++;
}
*(PUCHAR)DataBufOut = c;
//((PUCHAR)DataBuf)++;
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: DataBufOut[%x] = %x \n", (int)i, (int)c);
DataBufOut++;
}
//for( zz = 0; zz != j; zz++ )
//{
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData: mBuffer[%x] = %x \n", (int)zz, (int)mBuffer[zz]);
//}
return TRUE;
}
/*BOOL CH341WriteRead(PROGRAMMER * pgm, ULONG iWriteLength, PVOID iWriteBuffer,
ULONG iReadStep, ULONG iReadTimes,
PULONG oReadLength, PVOID oReadBuffer)
{
//int retval = 0;
//ULONG mLength;
ULONG mReadlen;
//ULONG iReadStep,iReadTimes;
//struct{
// ULONG oReadlen;
// PUCHAR iBuf;
// PUCHAR oBuffer;
// ULONG oReturnlen;
// }Read;
//iReadStep =*(PUCHAR)(iWriteBuffer+iWriteLength-8);
//iReadTimes = *(PUCHAR)(iWriteBuffer+iWriteLength-4);
mReadlen = iReadStep * iReadTimes;
if( mReadlen == 0 )
return FALSE;
//mLength = max( iWriteLength, mReadlen );
//#if 0
//printf("iWriteLength : %d\n",iWriteLength);
//printf("iReadTimes : %d\n",iReadTimes);
//printf("iReadStep : %d\n",iReadStep);
//#endif
//Read.iBuf = (PUCHAR)iWriteBuffer;
//Read.oBuffer = (PUCHAR)oReadBuffer;
//Read.oReturnlen = oReadLength;
// printf("iBuffer Addr is ------>:%p\n",Read.iBuf);
//Read.oReadlen = iWriteLength;
//retval = ioctl( dev_fd, CH34x_PIPE_WRITE_READ, (unsigned long)&Read );
if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, iWriteBuffer, (unsigned int)iWriteLength))
//if (!CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, iWriteBuffer, iWriteLength))
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, iWriteBuffer, sizeof(iWriteBuffer)))
//if (!CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, iWriteBuffer, sizeof(iWriteBuffer)))
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, iWriteBuffer, 100))
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, iWriteBuffer, 200))
{
fprintf(stderr, "Error: failed to transfer data to CH341\n");
//return -1;
return FALSE;
}
if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_IN, oReadBuffer, oReadLength))
{
fprintf(stderr, "Error: failed to transfer data from CH341\n");
//return -1;
return FALSE;
}
//if( retval == -1 )
//{
//printf("Error in pipe write/read\n");
//return FALSE;
//}
return TRUE;
}*/
BOOL MegaSpiEnable( PROGRAMMER * pgm )
{
UCHAR mBuffer[ CH341A_PACKET_LENGTH ];
ULONG i;
i = 0;
mBuffer[ i++ ] = CH341A_CMD_UIO_STREAM; // ÃüÁîÂë
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_OUT | 0x00; // default status: all 0
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_DIR | 0x29; // D0 & D3 & D5 output, other input
//mBuffer[ i++ ] = CH341A_CMD_UIO_STM_DIR | 0x2A; //TODO: D1 & D3 & D5 output, other input
//mBuffer[ i++ ] = CH341A_CMD_UIO_STM_DIR | 0x2B; //TODO: D0 & D1 & D3 & D5 output, other input
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_US | 32; // ÑÓ?32΢Ãë
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_END; // ??ÃüÁî?üÌáÇ?½áÊø
//return( CH341WriteData( pgm, mBuffer, &i ) ); // Ö´ÐÐÊý¾Ý?ÃüÁî
if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, 5))
{
fprintf(stderr, "Error: MegaSpiEnable\n");
//return -1;
return FALSE;
}
return TRUE;
}
/*BOOL SpiResetMega( PROGRAMMER * pgm )
{
UCHAR mBuffer[ CH341A_PACKET_LENGTH];
ULONG i;
i = 0;
mBuffer[ i++ ] = CH341A_CMD_UIO_STREAM; // ÃüÁîÂë
//mBuffer[ i++ ] = mCH341A_CMD_UIO_STM_OUT |0x02; // D1=1
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_OUT |0x01; // D0=1
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_END;
//if(CH341WriteData( index, mBuffer, &i ) == FALSE )
//return FALSE;
if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, 4))
{
fprintf(stderr, "Error: SpiResetMega_1\n");
//return -1;
return FALSE;
}
i = 0;
mBuffer[ i++ ] = CH341A_CMD_UIO_STREAM; // ÃüÁîÂë
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_OUT |0x00; // D1=0
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_END;
//return (CH341WriteData( index, mBuffer, &i ) );
if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, 4))
{
fprintf(stderr, "Error: SpiResetMega_2\n");
//return -1;
return FALSE;
}
return TRUE;
}*/
BOOL CH341SetStream_bitbang( PROGRAMMER * pgm, ULONG Mode )
{
UCHAR mBuffer[CH341A_PACKET_LENGTH];
UCHAR StreamMode;
//ULONG mLength;
StreamMode = (UCHAR)( Mode & 0x8F );
mBuffer[0] = CH341A_CMD_I2C_STREAM;
mBuffer[1] = CH341A_CMD_I2C_STM_SET | (StreamMode & 0x0F);
mBuffer[2] = CH341A_CMD_I2C_STM_END;
//mLength = 3;
//if( CH34xWriteData( mBuffer, &mLength ))
//{
//if( mLength >= 2 )
//return true;
//}
//return false;
return CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, 3);
}
/*static int CH341USBTransfer_bitbangPart2(PROGRAMMER * pgm, enum libusb_endpoint_direction dir, unsigned char *buff, unsigned int size) {
int ret, bytestransferred;
if (!PDATA(pgm)->usbhandle)
return 0;
if ((ret = libusb_interrupt_transfer(PDATA(pgm)->usbhandle, CH341A_USB_BULK_ENDPOINT | dir, buff, size, &bytestransferred, CH341A_USB_TIMEOUT))) {
avrdude_message(MSG_INFO, "%s: Error: libusb_interrupt_transfer for IN_EP failed: %d (%s)\n", progname, ret, libusb_error_name(ret));
return -1;
}
return bytestransferred;
}*/
/* bool CH341_write_read ( PROGRAMMER * pgm, unsigned long write_length, unsigned char * write_buffer, unsigned long read_step, unsigned long read_times, unsigned long *read_length, unsigned char *read_buffer )
{
unsigned char read[CH341A_PACKET_LENGTH];
//unsigned long j=0,k=0,s=0;
long j=0,k=0,s=0;
unsigned long m_length, m_rdlen;
int bytestransferred2;
int lwr_err;
m_rdlen = read_step * read_times;
avrdude_message(MSG_DEBUG, "CH341_write_read: read_step = %x \n", (int)read_step);
avrdude_message(MSG_DEBUG, "CH341_write_read: read_times = %x \n", (int)read_times);
avrdude_message(MSG_DEBUG, "CH341_write_read: m_rdlen = %x \n", (int)m_rdlen);
//ULONG iReadStep,iReadTimes;
//iReadStep = (write_buffer+write_length-8);
//iReadTimes = (write_buffer+write_length-4);
//avrdude_message(MSG_DEBUG, "CH341_write_read: iReadStep = %x \n", (int)iReadStep);
//avrdude_message(MSG_DEBUG, "CH341_write_read: iReadTimes = %x \n", (int)iReadTimes);
if ( m_rdlen == 0 ) return( FALSE );
m_length = max( write_length, m_rdlen );
j = CH341_write_data( pgm, write_buffer, write_length );
//j = CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, write_buffer, write_length);
do
{
//s = usb_bulk_read( usb_dev[ pgm ], sUSBIO[ pgm ].in_ep, read, read_step, sUSBIO[ pgm ].read_timeout );
//s = usb_bulk_io( PDATA(pgm)->usbhandle, 0x82, read, read_step, 5000 );
if ((lwr_err = libusb_bulk_transfer(PDATA(pgm)->usbhandle, 0x82, read, read_step, &bytestransferred2, 5000)))
//if (lwr_err = libusb_interrupt_transfer(PDATA(pgm)->usbhandle, 0x82, read, read_step, &bytestransferred2, 5000))
{
avrdude_message(MSG_INFO, "CH341_write_read. Error: libusb_bulk_transfer for IN_EP failed: %d (%s)\n", lwr_err, libusb_error_name(lwr_err));
return FALSE;
}
s = bytestransferred2;
avrdude_message(MSG_INFO, "s = %d\n", (int)s);
if( s < 0 )
{
//printf("Error in pipe write/read\n");
avrdude_message(MSG_INFO, "Error in pipe write/read. s = %d\n", (int)s);
return false;
}
memcpy( read_buffer, read, s );
read_buffer += s;
k += s;
}
while
(--read_times);
*read_length = k;
//return k;
avrdude_message(MSG_INFO, "k = %d\n", (int)k);
if( k == -1 )
{
//printf("Error in pipe write/read\n");
avrdude_message(MSG_INFO, "Error in pipe write/read. k = %d\n", (int)k);
return false;
}
return true;
} */
/* int CH341_write_data( PROGRAMMER * pgm, unsigned char *buf, unsigned long size )
{
int ret;
int offset = 0;
int total_written = 0;
int bytestransferred3;
int lw_err;
while (offset < size)
{
int write_size = mMAX_BUFFER_LENGTH;
if (offset+write_size > size)
write_size = size-offset;
avrdude_message(MSG_INFO, "write_size = %d\n", (int)write_size);
//ret = usb_bulk_write( usb_dev[ pgm ], sUSBIO[ pgm ].out_ep, (char *)buf+offset, write_size, sUSBIO[ pgm ].write_timeout);
//ret = usb_bulk_io( PDATA(pgm)->usbhandle, 0x02, (char *)buf+offset, write_size, 5000);
if ((lw_err = libusb_bulk_transfer(PDATA(pgm)->usbhandle, 0x02, (char *)buf+offset, write_size, &bytestransferred3, 5000)))
//if (lw_err = libusb_interrupt_transfer(PDATA(pgm)->usbhandle, 0x02, (char *)buf+offset, write_size, &bytestransferred3, 5000))
//if (lw_err = libusb_bulk_transfer(PDATA(pgm)->usbhandle, CH341A_USB_BULK_ENDPOINT | dir, buff, size, &bytestransferred, CH341A_USB_TIMEOUT))
{
avrdude_message(MSG_INFO, "CH341_write_data. Error: libusb_bulk_transfer for IN_EP failed: %d (%s)\n", lw_err, libusb_error_name(lw_err));
//fprintf(stderr, "CH341_write_data. Error: failed to transfer data to CH341\n");
return FALSE;
}
ret = bytestransferred3;
avrdude_message(MSG_INFO, "bytestransferred3 = %d\n", (int)bytestransferred3);
//avrdude_message(MSG_INFO, "ret = %d\n", (int)ret);
if (ret < 0)
return FALSE;
total_written += ret;
offset += write_size;
avrdude_message(MSG_INFO, "offset = %d\n", (int)offset);
avrdude_message(MSG_INFO, "total_written = %d\n", (int)total_written);
}
return total_written;
} */
//#define compat_err(e) -(errno=libusb_to_errno(e))
/* static int usb_bulk_io(libusb_device_handle * dev, int ep, char *bytes, int size, int timeout)
{
int actual_length;
int r;
//usbi_dbg("endpoint %x size %d timeout %d", ep, size, timeout);
r = libusb_bulk_transfer(dev, ep & 0xff, bytes, size, &actual_length, timeout);
// if we timed out but did transfer some data, report as successful short
// read. FIXME: is this how libusb-0.1 works?
if (r == 0 || (r == LIBUSB_ERROR_TIMEOUT && actual_length > 0))
return actual_length;
return compat_err(r);
} */
bool CH341_write_read_new ( PROGRAMMER * pgm, unsigned long write_length, unsigned char * write_buffer, unsigned long read_step, unsigned long read_times, unsigned long *read_length, unsigned char *read_buffer )
{
unsigned char read[CH341A_PACKET_LENGTH];
//unsigned long j=0,k=0,s=0;
//long j=0;
long k=0,s=0;